Method of drawing wire continuously



juy l5 1924. 1,501,305

E. BOLEY METHOD OF DRAWING WIRE CONTINUOUSLY Filed Dc. 27. 1990 3 Sheets-Sheet l Wfl my 15 1924. wmos E. EOLEY METHOD OF DRAWING WIRE CONTINUOUSLY Filed Dec. 27. 19?@ 6 Sheets-Sheet 2 wiwi @0| july TIS 1924- METHOD OF DRAWING WIRE CONTIHUOUSLY Filed Dec. 27. 1920 s sheetsheew Patented July l5, lgge.

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ERNST BOLEY, OF CLEVELAND, OHIO, ASSIGNGR TO THEAMRICAN STEEL AND WIRE COMPANY 0F NEW JERSEY, A CURPORATION OF NEW JERSEY,

METHOD 0F DRAWING WRE CONTENUOUSLY.

Application lcd December 27. 1920. Serial No. @3,283

T o all zc/zom it may concern.'

Be. it known that l, EnNsr Boter, a citizen of the United States, and resident of Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain .new and useful Improvements in Methods of Drawing Wire Continuously. of which the following is a specification.

This invention relates to continuously drawing wire through two or more dies. and has for its principal object the provision of 'an upward method, whereby a rod or wire is continuously and simultaneously drawn through a plurality of successive dies, and wherein the danger of breakingv the wire is avoided and overcome.

Another object of the invention is to provide a method applicable to exist-ing plants, without material change in the arrangementor construction thereof.

yThe ditlcultiesexperienced in continuous- .ly drawing wire, particularly wire of .the larger sizes, have been so great that in the method in general use heretofore each bundle of rods or wire is uncoiled, pulled through a single drawing die as uncoiled and is then again coiled into a bundle, these steps being carried out with each reduction` in the size or gage of the rod or wire.

My improved method provides for forming a certain amount of slack or loose wire after each die from which the wire is fed to the next succeeding die, thereby providing a means for compensating for any irregular feeding of the wire through either die and avoiding undue tension on the rod or wire beingl drawn.

lilith my improved method the wire `draw blocks are positively driven at regu lar speeds at all times, and a very simple and effective mechanism is provided to provide and care for suiiicient slack in the wire between the successive drawingr operations. as will be apparent from the following drawings which .illustrate onetorm of mechanism for carrying out my invention. n In the drawings. igure l is a plan showA ing a wire bench having a series of three die boxes and three draw blocks thereon for continuously drawing wire adapted for use.`

in practicing my invention.

Figure 2 is a side elevation thereof. Figure, 3 is an enlarged plan o a portion of the draw bench showing one die box and draw block with means for frictionally holding a part of the coils of' wire taut on the block.

Figure t is a side elevation of the portion of the apparatus shown in Figure 3.

Figure 5 is a detail plan of a portion of a draw block, showing a modification in 'I bers 2 and 3 secured to cross supports 4 which are mounted on bases 5. The4 side member 3 is set with relation to the member Q. on an outwardly and forwardly divergingl angle, for a purpose to be explained hereinafter.

Die boxes 6. Ga and 6b of any known design, are pivotally mounted on the supports 7. the dic box supports 7 being fastened to the ovorhanging ends of the cross arms 7a of the frame A, each die boX extending outwardly the same distance beyond Vthe side member 3 of the draw bench frame.

In front of the rearmost die box 6 is a draw block 8f* which is on one end of a shaft 9a journaled in bearings 10 on the members 2 and 3, and immediately forward of the intermediate die box 6 is a drawblock 8 which is keyed or otherwise fastened on one end of a shaft 9 mounted in bearings l0 on the side members 2 and 3. ,ln front of the intermediate die box 6b is a take-up block 1l which is keyed to the `overlfianging end of a shaft 1Q- fwhich is journaled in bearings l2r1 on the trarne members Q and The rearmost shaft 9a is connected by reducing gearing to a countershat 14 to reduce the speed of the block 8, and the shafts 14. 9 and 1Q are each provided with a; driving' pulley i5, 'these pulleys being connected a belt (not shown) to a suitable prime mover. However. the pulleys are oi diilferent diameters so that each successive shaft, and consequently the block keyed thereon, vvill be rotated at a somewhat greater speed than the preceding one, to to take. up as. nearly as possible the extra length ot the Wire, due to the elongation caused by drawing through'the preceding die. Each of the blocks extends the same distance beyond the side member 3.

The blocks 8 and 8 have an outwardly Haring rim or flange portion 16, circular face port-ion 17,.a nda reduced spindle portion 18. The tace portion 17 has a slight taper away from the rim (preferably about one degree), and the outer edge of this face portion pret4 erably Will be provided With a flange 1T projectin slightly beyond the conical tace portion 11 so as to a slight extent retard and prevent, the coils of Wire Wrapped upon the face portion from slipping out from under the pressure roller 2&1 until the proper time. (See Figure 5.) `rThis projecting ange may be formed integral as shown or may be otherwise formed thereon. The spindle portion is preferably of skeleton construction andof appreciably less diameter` than the tace portion 1T.

The take-up block 11 is ot the usual con-- struction` comprising an outwardly tapered body portion 20, having a rim or flange 21 at its rear or inner end.

Retaining lugs 19 which are pivotally mounted on the outer ends of the 'blocks S are provided to temporarily hold the wire in position.

Bell cranks 22 are pivotally mounted on stub shafts 23, secured on the trame member 3, one for each of theblocks 8, 8". The vertical arm of the bell crank 22 has a pressure roller 24 ou the upper end thereof. and a counterweight 25 on the outer end ot the horizontal arm, the counterweight crank arms being adapted to hold thi` roller 24 'against the surface 17 ot the blocks 8 and 8 with considerable pressure. Adjusting the counter-Weight on the arm will regulate thc amount of pressure.

The rollers 24 are set at an angle to the transverse axis of the bell cranks 22, so that only their outer edge engages the surface 17 of the blocks 8.

The position of the pressure rolls 24 and associated parts 22, 23 and 25 relative to the blocks 8 may be reversed so as to have the pressure roller 24 on the opposite side of the vertical axis of the blocks 8 and S" when found or considered necessary or desirable as is shown in Figures 6 and?, and obviously two pressure rollers, one on each side ot the vertical axis of the draw blocks, may be used.

As the ivire is drawn through the dies in the die boxes 6. of, it is givenV a feiv Wraps around the surface 17 of the blocks 8, and 8, each coil of wire laying behind the one previously made', and by reason ot the taper ot the face 17 of the conical blocks each suceessive wrap will be pushed outwardly until it falls from the tace 17 to the spindle 18 where it will hang, forming a loose coil.

rl`he Wire is ted trom the loose coils on the spindles 18 to the next succeeding die which, because of the angular position of thetranie member 3, is in line to receive it and permit a tangential or straight pull or feed on the wire through the die.

The block 11 is arranged to have the end i of the Wiresecured thereto, and is adapted to have a multiplicity ot layers Wrapped thereon so as to form the drawn Wire into a coil or bundle. l

rlhe drawing of Wire in accordance with my improved method is as follows.

The rod to be drawn, which has been previously cleaned of scale, is mounted on the spool or reel B at Ithe rear ot the draw bench A, and is drawn through the first die box which reduces its diameter. As the Wire emerges from the die it isivrapped on the surface 1T ot the block 8 and held taut by the pressure roller 24, each additional wrap or coil falling behind the previously formed coil and pushing tapered surface until said surface is com pletely covered, a'tter which each additional Wrap or coil will push one ot the previously taut Wraps or coils oiln onto the spindle portion 18, forming loo'se Wraps dr coils. After s plurality of lodse Wraps or, coils are formed. the Wire is ted trom the) loose coils through the next succeeditigffdie, and again drawn to reduce its diameter, While the remainder ot the Wire is still being draivn through the first die.

A sthe `Wire emerges from the second die it is Wrapped on the surface. 17 of the next block S and held taut by the pressure roller 24. until the surface is completely covered. atter which each additional Wrap or coil Will push one ot the previously formed coils otfi the surface 1T to the spindle portion, form-l ing loose coils thereon. After a plurality oth loose coils are formed, the Wire is fed from the loose coils through the next succeeding die and again drawn to reduce its diameter, While other portions in the length ot the Wire is still being drawn throu/gh the other dies. It will be apparent that these operations may be repeated until the desired size is obtained.

The wir," as it emerges Yfrom the last die is Wrappec on the take-up block 11 and held taut by securing its end to the block. Afterl the Wire is drawn and all Wrapped on the blocku 11, the so orned bundle or coil of draivn ivire is bound and then removed from the block.

It will be particularly noted that I do not Wish to be limited to the structure or drawing bench shown and described. Nor do I Wish to be limited to the number of dies used, since variousnumbers may be used it forward along the ifi accuses without departingfrom the scope of my invention as defined in the appended claims.

l claim l. rl`he method of continuously drawing wire which consists in drawing, the wire through a die, wrapping theA rawn wire upon a draw block, forming a plurality of taut and a plurality of loose coils thereon and feeding portions of the wire from said loose coils through-a second die while drawings other portions of the wire through said first die` and wrapping the wire after drawing through said second die on a suitable block and thereby forming a bundle or coil of the drawn wire.

2. The method oiilcontinuously drawing wire which consists in drawing the wire through a die, wrapping the drawn wire upon a draw block to form a plurality of taut and a plurality of loose coils. feeding porltions of the wire from said loose coils through a second die while drawing other portions through said first die, wrapping the wire as drawn through said second diel u on a draw block to form a second series o taut and loose coils, and feeding portions of the wire from said last formed loose coils through a third die while drawing other portions oi' the wire'through said first and ysecond dies.

coilin the drawn wire emerging from said secon die into a bundle or coil.

4. The method of continuously drawing wire which consists in drawing the wire throu h'a die, wrapping a plurality of coils of sai wire upona draw block, frictionally holding some of said coils taut upon said bloc-k and allowing the remaining coils to hang loosely thereon, continuously adding to Said taut coils and releasing other ol said taut coils to form loose coils during the drawing operation, drawing the wire from said loose coils through a second die while continuously dravivingr another portion thereof through said first die'` and again wrapping said wire upon a block to form taut and loose coils, 'and continuing said operations until the desired size of wire is ohtained, and finally wrapping said wire upon a take-up block for binding into coils or bundles.

5; The method of continuously drawing wire which consists in drawing the wire through a die, wrapping a plurality` of coils of said drawn wire upon a draw block, frictionally holding some of said coils taut thereon and allowing the remaining coils to hang loosely upon said block, continuously adding to and releasing the taut coils to form loose coils during the drawing operation, drawing the wire from said loose coils Ythrough a second die of smaller diameter while drawing another portion thereof through said first die,'wrapping a plurality of coils of the wire drawn through said second die upon a draw block, frictionally holding some of said coils taut upon said block and allowingothers to han loosely upon said block, continuously ad ing and releasing other of said taut coils to form loose coils during the drawing operation, and drawing the wire-from said last named loose coils through a third die of smaller diameter than said second die, while the wire is being drawn through said first and second dies.

6. The method of continuously drawing wire which consists in drawing the wire through a die, wrapping a lurality of coils of the drawn wire upon a raw block` frictionally holding some of said coils taut upon said block and allowing the remaining coils to hang loosely thereon` continuously adding to said taut coils and releasing other of said.

taut coils and thereby form loose coils during the drawing operation. drawing the wire from said loose coils through a second die of smaller diame er while continuously drawing through sail first die, wrapping a plurality of coils of said wire after being drawn through said second die upon a draw block, frictionally holding some of said coils taut upon said block and allowing the re- Fill lllii r maining coils to hang loosely upon said block, continuously adding to said taut coils and releasing other of said taut coils to form loose coils during the drawingr operation, drawing the wire from said last named loose coils through a third die of less diameter than said first or second dies` while continuously drawing through said first and second dies. and wrappingsaid wire as it is drawn through said 'third die ou a suitable block.

7. The method of continuously drawing wire which consists in drawing the wire through a. die, wrapping a plurality of coils of said drawn wire upon a draw block. frictionally holding some of said coils taut upon said block and allowing the remaining coils. to hang loosely thereon. drawing said wire from said loose coils through a second die while continuously drawing through said first die, and wrapping thc wire as it is drawn through said second dicupon a suitahle block to forni a bundle or coil of finished wire.

8. The method ol.' contilmously drawing alla wire. which consists in simultaneously drawing differentr portions of a wire through a plurality ot drawing dies. coiling the drawn wire on a draw block between `:aid dies and applying yielding pressure to an interrnev diate point in the length of the wire coiled on the draw block. to thereby maintain a series ot` taut and loose coils on the draw block during the wire drawing operations.

9. The method of continuously drawing wire. which consists; in simultaneously draw ing different portions ot' a wire through a plurality of drawing dies` coiling the drawn wire 0n a draw block between said dies. and applying yielding pressure to un intermediate point in the length ot the wire coiled on theldraw block. to thereby permit' uncoilingf of the wire wrapped around the draw bloc.; at a speed varying from the speed ot'coiling during the wire drawing operations.

l0. The method of continuously drawing wire which consists in simultaneously drawing differentportions ot a wire through a plurality of drawing dies` coiling the drawn wire on a draw hloclt between said dies. wrapping the wire on said draw block in a series of taut and loose coils and applying pressure to an intermediate point in the length ot the wire coiled on the draw blot-lt in maintaining the taut and loose coils on successively drawn portions' of the wire in coiliug the wirev on said draw block.

`l l` The method of continuously drawing wire which consists in simultaneously drawingr different portions ot' a wire through a plurality of drawing dies. coiling the drawn wire on a draw block between said dies. wrapping the wire on said draw block in a Series ot taut and loose. coils. applying pres sure to an interu'iediate point in the length of the wire coiled on the draw bloclt in maintaining the taut. and loose coils on successively drawn portions ot the wire in coilY draw block and reing the wire on said in uncoihng movingthe wire. tangentially it from the draw blot-lt.

l2. The method ot continuously drawing wire which consists in simultaneously drawing di'erent. portions o'l` a wire through a plurality ot drawing dies. toiling the drawn wire on a draw block between said dies. wrapping the wire on said draw blot-lt in a. series ot taut and loose coils` applying pressure to an intermediate point in the length ot' the wire coiled on the draw block in maintaining the taut and loos-c coils on Slttccseiyely drawn portions ot' tht` wire in coiling the wire on Said draw blot-lt and removing the wire axially and langentially in uncoiliug it troni the draw bloclt.

lfl. 'lhc method ot' continuously drawing wire which consists in Simultaneously drawv4 ing separated portions of the wirothrougli a. pluralitv ot dies` wrapping the drawn wtre upon draw blocks onl the, exit side ot `said dies. forming the drawn wire memoir.

said dies. forming the drawn wire into a series of taut and loose coils on said draw blocks and frictionally holding the .wire coiled on said draw blocks intermediate the ends of the coiled wire to therebv maintain the. taut coils on said draw bloei: and permit removalof the wire vforming the loose coils.

il. The method otcontinuously drawing wire which consists in simultaneously drawing separated portions ot the wire through a plurality of' dies. wrapping the drawn wire upon draw blocks on the exit side of ysaid Idies` forming the drawn wire into a Series ot taut and loose coils on said draw blocks and trictionally holding the wire coiled on said draw blocks intermediate the ends of the coiled wire to thereby maintain the taut coils on said draw block and per init removal of the wire forming the loose -coi1s. at a speed independent ot that of which the drawn wire` is formed in to the taut'coils,

15. The method of continuously drawing wire which Consists in simultaneously drawing separated portions ot the wire through a plurality of dies. wrapping the drawn wire upon draw bloolts on the exit side ot i into a series of tant. and loose coils on said draw blocks and frictionally holding the wire coiled on Said draw blocks intermediate the ends ot' the coiled wire to thereby main tain the taut coils on said draw blotlt and permit. removal ot the wire forming the loose coils tangentially and at a speed inde pendent @t that of which the drawn wire is formed into the taut coils.

16. The method ot' continuously drawing wire which consi. s in simultaneously draw*Y ing separated portions ot the wire through a plurality ot` dies. wrapping the drawn wire upon draw blocks on the eXitside ot said dies. forming the drawn wire into a series of taut and loose coils on said draw blocks and frictionally holding the wire coiled on Said draw blocks intermediate the ends ol' the coiled wire to thereby maintain the. taut coils on said draw bloclt and permit removal of the wire torming the loose coils tangentially and at a speed varying from that at which the drawn wire is l'ormed into the taut coils.

t7. 'lhe method of continuously drawingr wirewhich consists in simultaneously draw ing separated portions ot the wire through a plurality ot` dies. wrapping the drawn wire. upon draw blocks on the exil side o1" said dies. formin;` the drawn wire into a series of taut and loos(` coils on `iid draw blocks and l'rictioually holding the wire coiled on said draw blocks intermediate the ende ot the coiled wire to thereby main tain the taut coils on said draw liloclt and permit removal of the wire forming the llll loose coils tangentially und at spees faster" and slower thnn'that at which the tout coils are formed on the draw blocks.

18. The. method of cominuously drawing 5 wir(J which consists in simultaneously drawing the Wire through ,u plurality of dies, wrapping the drawn wire upon draw blocks, friotionally holding part of said coils taut upon soia @locks while the remaining coils hang loosely thereon. uucoiliug; the loosely coiled wire mugeutinlly from said block und drawing the urn-oiled wireI through a socoud die.

in testimony whereof. l have hereunto signed my name.

ERNST BULEY. 

